CODEWITHSUNDEEP
linuxunixauthenticationsftppublic-key
user290
user290

Reputation:

Setup SFTP to use public-key authentication

How do you setup server to server SFTP to use public-key authentication instead of user account and password?

Upvotes: 13

Views: 49239

Answers (3)

bhups
bhups

Reputation: 14875

In the client you need to generate its public key and add it to server's authorized key list.

The following are the commands you can use.

On client machine

ssh-keygen -t dsa -f id_dsa
mv id_dsa* ~/.ssh/
scp ~/.ssh/id_dsa.pub USER_NAME@SERVER:~/.ssh/HOST_NAME.key

On the server

cat ~/.ssh/HOST_NAME.key >> ~/.ssh/authorized_keys2

Upvotes: 12

Gil Allen
Gil Allen

Reputation: 1237

This is a solution for windows users

I had a similar issue on windows so I used Putty from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

If you need to generate a public key then use: http://the.earth.li/~sgtatham/putty/latest/x86/puttygen.exe

Then, when you want to automate a batch to download from the FTP server the Pageant in order to load the private key into session http://the.earth.li/~sgtatham/putty/latest/x86/pageant.exe

Then use the PSFTP to connect and perform actions http://the.earth.li/~sgtatham/putty/latest/x86/psftp.exe

So here is sample code for the batch:

!--Loading the key to session--!
@C:\pageant.exe "C:\privatekey.ppk"
!--Calling the PSFTP.exe with the uaser and sftp address + command list file--!
@C:\psftp [email protected] -b C:\sftp_cmd.txt

Command list file (sftp_cmd.txt) will like like this:

mget "*.*" !--downloading every thing
!--more commands can follow here
close

Now, all you need to to schedule it in scheduled tasks *I wish it was simple as unix's cron job....

Upvotes: 1

JONATHAN SEDER
JONATHAN SEDER

Reputation: 376

Remember to

chmod 700 .ssh

and also

chmod 600 authorized_keys

Upvotes: 3

Related Questions